/*
 * Copyright (c) 2013, Juergen Bocklage-Ryannel, Johan Thelin
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the editors nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

// M1>>
import QtQuick 2.5
/*
这个函数接受三个参数：qml，parent和filepath。qml参数包含了用来实例化的
QML代码字符串。parent参数为新创建的对象提供了一个父对象。filepath参数用于
存储创建对象时的错误报告。这个函数的结果返回一个新的对象或者一个NULL。
警告
createQmlObject函数通常会立即返回结果。为了成功调用这个函数，所有的依赖
调用需要保证已经被加载。这意味着如果函数调用了未加载的组件，这个调用就会
失败并且返回null。为了更好的处理这个问题，必须使用
createComponent/createObject方法。
使用Qt.createQmlObject函数创建对象与其它的动态创建对象类似。这说明与其它
创建的QML对象一样，也没有id
*/
Item {
    id: root

    width: 1024
    height: 600

    function createItem() {
        // 直接从文本中创建一个动态对象，直接返回结果，保证动态对象的依赖项都存在
        Qt.createQmlObject("import QtQuick 2.5; Rectangle { x: 100; y: 100; width: 100; height: 100; color: \"blue\" }", root, "dynamicItem");
    }

    Component.onCompleted: root.createItem();
}
// <<M1
